"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 防篡改
Case Name   : 数据库用户权限检查
Create At   : 2022/3/10
Owner       : @daiguatutu
Description :
    1.设置参数并重启数据库enableSeparationOfDuty=on
    gs_guc set -N all -I all -c enableSeparationOfDuty=on;
    gs_om -t restart
    2.创建新用户和表
    create user u_author_account_0010 password 'test@123';
    create table t_author_account_0010 (id int,name varchar(10));
    3.切换新用户创建/删除/查询用户
    drop user u_author_account_0010_1;
    create user u_author_account_0010_1  password 'test@123';
    select * from pg_user;
    4.切换新用户创建/删除表
    drop table t_author_account_0010_1;
    create table t_author_account_0010_1 (id int,name varchar(10));
    5.清理环境
    drop table t_author_account_0010;
    drop user u_author_account_0010,u_author_account_0010_1 cascade;
    gs_guc set -N all -I all -c enableSeparationOfDuty=off;
    gs_om -t restart
Expect      :
    1.成功
    2.成功
    3.失败
    4.成功
    5.清理环境成功
History     :
"""

import os
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class Security(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_node = Node(node='PrimaryDbUser')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.common = Common()
        self.u_name = 'u_security_authen_account_0010'
        self.u_name_01 = 'u_security_authen_account_0010_01'
        self.t_name = 't_security_authen_account_0010'
        self.t_name_01 = 't_security_authen_account_0010_01'
        self.default_value1 = self.common.show_param('enableSeparationOfDuty')

    def test_security(self):
        text = '-----step1：设置参数并重启数据库enableSeparationOfDuty=on; ' \
               'expect:成功-----'
        self.log.info(text)
        mod_msg = self.pri_sh.execute_gsguc('set',
                                            self.constant.GSGUC_SUCCESS_MSG,
                                            'enableSeparationOfDuty=on')
        self.assertTrue(mod_msg, '执行失败:' + text)
        result = self.pri_sh.restart_db_cluster()
        self.assertTrue(result, '执行失败' + text)

        text = '-----step2：创建新用户和表 expect:成功-----'
        self.log.info(text)
        create_cmd = f"drop user if exists {self.u_name}," \
            f"{self.u_name_01} cascade; " \
            f"create user {self.u_name} " \
            f"password '{macro.GAUSSDB_INIT_USER_PASSWD}';" \
            f"drop table if exists {self.t_name};" \
            f"create table {self.t_name}(id int,name varchar(10));"
        msg = self.pri_sh.execut_db_sql(create_cmd)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.DROP_TABLE_SUCCESS, msg, '执行失败:' + text)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS, msg,
                      '执行失败:' + text)

        text = f'-----step3：切换新用户创建/删除/查询用户; expect:失败-----'
        self.log.info(text)
        sql = f"drop user if exists {self.u_name_01} cascade; " \
            f"create user {self.u_name_01} " \
            f"password '{macro.GAUSSDB_INIT_USER_PASSWD}';" \
            f"select * from pg_user;"
        connect = f'-U {self.u_name} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertEqual(3, msg.count('ermission denied'), '执行失败:' + text)

        text = '-----step4：切换新用户创建/删除表 expect:成功-----'
        self.log.info(text)
        sql = f"drop table if exists {self.t_name_01};" \
            f"create table {self.t_name_01}(id int,name varchar(10));" \
            f"drop table if exists {self.t_name_01};"
        connect = f'-U {self.u_name} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_TABLE_SUCCESS, msg, '执行失败:' + text)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS, msg,
                      '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----step5：清理环境-----')
        text1 = '-----删除用户和表 expect:成功-----'
        self.log.info(text1)
        drop_cmd = f"drop table if exists {self.t_name}; " \
            f"drop user if exists {self.u_name},{self.u_name_01} cascade;"
        drop_msg = self.pri_sh.execut_db_sql(drop_cmd)
        self.log.info(drop_msg)

        text2 = '-----修改参数enableSeparationOfDuty为初始值并重启数据库 expect:成功-----'
        self.log.info(text2)
        mod_msg1 = self.pri_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'enableSeparationOfDuty='
                                             f'{self.default_value1}')
        restart_res = self.pri_sh.restart_db_cluster()

        self.log.info('-----断言tearDown执行成功-----')
        self.assertIn(self.constant.DROP_TABLE_SUCCESS, drop_msg,
                      '执行失败:' + text1)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, drop_msg,
                      '执行失败:' + text1)
        self.assertTrue(mod_msg1, '执行失败:' + text2)
        self.assertTrue(restart_res, '执行失败:' + text2)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
